Home / 772,939.80-1,159,409.70-493,003.80

Finding the Fourth Proportional to 772,939.80, 1,159,409.70 and 493,003.80

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Solution

The fourth proportional to 772,939.80, 1,159,409.70 and 493,003.80 is: 739,505.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,939.80 : 1,159,409.70 = 493,003.80 : x
  2. Step 2: Convert to fraction form
    772,939.80/1,159,409.70 = 493,003.80/x
  3. Step 3: Cross multiply
    772,939.80x = 1,159,409.70 × 493,003.80
  4. Step 4: Simplify right side
    772,939.80x = 571,593,387,856.86
  5. Step 5: Solve for x
    x = 571,593,387,856.86/772,939.80
  6. Step 6: Final answer
    x = 739,505.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.